• Department of Urology, the Second People's Hospital of Deyang, Deyang, Sichuan 618000, P. R. China;
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Objective To investigate the necessity of indwelling ureteral stent before flexible ureteroscopic lithotripsy in the treatment of upper urinary tract calculi. Methods Eighty-five patients with upper urinary tract calculi treated between June 2013 and December 2014 were divided into two groups:group A (without indwelling stent, n=42) and group B (with indwelling stent, n=43).Incidence of stent-related urinary tract symptoms, operation time, one-time success rate of placement for ureteral access sheath, and stone clearance rate were compared between the two groups. Results The operation time and stone clearance rate had no statistically significant differences between the two groups (P > 0.05).The incidence of stent-related urinary tract symptoms and one-time success rate of placement for ureteral access sheath in group B were significantly better than those in group A (P < 0.05). Conclusion For one-phase operation success, we suggest that indwelling ureteral stent is necessary before flexible ureteroscopyic lithotripsy for treating upper urinary tract calculi.

Citation: LuoHua, LiaoGaoyuan, LiuChen, WangXiaobo. Study on Necessity of Indwelling Ureteral Stent before Retrograde Intrarenal Surgery. West China Medical Journal, 2016, 31(12): 1986-1988. doi: 10.7507/1002-0179.201600545 Copy

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